My Big Day is a fundraising organisation that helps seriously ill children to realise their dreams. Each year, hundreds of children in Sweden fall ill with diseases that have a serious impact on their lives, and these diseases can often be life-threatening. The foundation's goal is to give these children something to dream about on long days when they have to undergo tough treatment. Princess Madeleine has been patron of My Big Day since 2001. Find out more about My Big Day here.